If a TimeControl is added to a window with date at say, 12:00:00 am, arrows appear on the right of the time to increment up or down by one.
- Select the minutes (initially 00) and then click the arrow to make them, say 30
- Type the number 15 in the minutes (without moving focus away) to set the time as 15 minutes, then click the up arrow. Instead of showing 16, it shows 31
- Repeat the same, but in point #2, first move the focus onto the seconds then back onto minutes, then the up arrow will move the number 15 to 16 as expected.
This is only a minor issue, and I mentioned the workaround above, but thought @Björn Eiríksson might like to know.